My mouses have both become super sensitive, the laptop built in mouse and my external mouse (A4 tech). If I even pass over a link on the way to what I want, that link opens as if I had clicked on it.

What do you suggest? What could be causing this?

Thanks.Should be custom settings in Control Panel....did you check there ? ?Control Panel - Ease of Access - Make the mouse easier to use

Make sure "Activate a window by hovering over it...." is uncheckedThank you patio and Allen. Actually I couldn't get to a a specific place within control panel because as I moved to click on one thing so many other pages and windows opened. FINALLY I decided to just shut the computer down and LET it rest (is that even a thing?). Anyway, I turned it back on a while later and that particular problem was GONE. I also deleted a lot of downloads so that room was cleared on my hard.
Still, when this was happening I had the sense that I was under attack. I mean, why did this happen all of a sudden when I hadn't CHANGED those setting you both referred to?

Whatever it is, it's over, for now.

Thanks again.Good News...

I'd update and run full scans of your protection apps if that's what you suspect...but i doubt it is...THANK you, will do.